GSC FA20 Valve Spring Set - FR-S / BRZ / 86

All new GSC Power-Division Single, Cylindrical Spring kit for the Subaru BRZ, Scion FRS and Toyota FT86 using the new 2.0L NA boxer engine. These are great for boosted applications or high revving NA engines needing more spring with out breaking the bank. These can handle up to 8200RPM and 20LBS of boost due to new Chromoly valve spring seats and light weight titanium retainers.


  • 16 Valve Springs
  • 16 Ti Retainers
  • 16 Spring Seats


  • 5756 Single Spring
  • 93lbs @ 1.300"
  • 175lbs @ .400" lift
  • Max Boost: 20 PSI
  • Max RPM: 8200

    Fitment: 2013+ FRS BRZ 86

    Welcome! As of April 2020, We have merged all the great MR2 and 86 parts from PrimeDriven back on to our parent site - PRIMEMR2 - This way we can serve our parts customers better and more efficiently! Prime MR2 is your one stop shop for all of your MR2, FR-S, BRZ and 86 parts needs. If you are looking to enter the PrimeDriven Car giveaway - click BACK on your browser or head over to for a chance to win!